JPH01204838A - Air bag device for automobile - Google Patents

Air bag device for automobile

Info

Publication number
JPH01204838A
JPH01204838A JP63028533A JP2853388A JPH01204838A JP H01204838 A JPH01204838 A JP H01204838A JP 63028533 A JP63028533 A JP 63028533A JP 2853388 A JP2853388 A JP 2853388A JP H01204838 A JPH01204838 A JP H01204838A
Authority
JP
Japan
Prior art keywords
air bag
airbag
cover
unit
instrument panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63028533A
Other languages
Japanese (ja)
Other versions
JP2509277B2 (en
Inventor
Yamato Hirabayashi
平林　大和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP63028533A priority Critical patent/JP2509277B2/en
Priority to US07/304,097 priority patent/US4911471A/en
Publication of JPH01204838A publication Critical patent/JPH01204838A/en
Application granted granted Critical
Publication of JP2509277B2 publication Critical patent/JP2509277B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/216—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member comprising tether means for limitation of cover motion during deployment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • B60R21/21656—Steering wheel covers or similar cup-shaped covers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

PURPOSE:To make the setup of an air bag unit on top of an instrument panel performable by installing an opening regulating means in an air bag cover capable of opening a cover in front of a car room as receiving the expansive pressure at the time of air bag expansion. CONSTITUTION:An air bag unit 5 is set up in an air bag mounting hole 4 formed on top of an instrument panel 1. This air bag unit 5 consists of a base plate 6, a gas generator 7, an air bag body 8 and an air bag cover 9. In this case, an opening regulating means 16 of the air bag cover 9 is additionally installed in this air bag unit 5. As this opening regulating means 16, for example, a present cloth strap is put in reinforcing cloth of the air bag cover 9 in the body width direction in order to keep off any scattering at the time of spread of the air bag body 8. With this constitution, the air bag body 8 at the time of this spreading is prevented from colliding with a front window panel 2.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は自動車のエアバッグ装置、とりわけ、助手席乗
員保護用のエアバッグ装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an airbag device for a motor vehicle, and more particularly to an airbag device for protecting a front passenger seat occupant.

従来の技術 自動車の助手席乗員保護用のエアバッグ装置としては、
例えば特開昭５８−７６３４４号公報に示されているよ
うに、助手席前方のインストルメントパネルの前面（縦
ｇりにエアバッグユニットを格納配置し、エアバッグ膨
張時にその膨張圧により該格納部のリヅドをＭ蓋して、
エアバッグを車室内に展開させるようにしたものが知ら
れている。Conventional technology Airbag devices for protecting passenger seats in automobiles include:
For example, as shown in Japanese Unexamined Patent Publication No. 58-76344, an airbag unit is stored in the front surface (vertically) of the instrument panel in front of the passenger seat, and when the airbag is inflated, the inflation pressure is used to Cover the lid with M,
A vehicle is known in which an airbag is deployed inside the vehicle.

発明が解決しようとする課題 エアバッグユニットを助手席前方のインストルメントパ
ネル前面に格納配置するために、グローブボックスの設
定スペースがなくなってしまい、あるいは、グローブボ
ックスを設定できたとしても狭く制約されてしまい、小
物収納部が不足する不具合がある。この不具合対策とし
ては、エアバッグユニットをインストルメントパネルの
上面に配置できればよいのであるが、インストルメント
パネルの上方にはフロントウィンドウパネルが後傾状態
に存在しているため、エアバッグ展開時の圧力でフロン
トウィンドウパネルが破損すると、乗員を拘束するため
のエアバッグ反力面が得られな（なってしまうことから
、実現性に乏しい状況にある。そこで、本発明はフロン
トウィンドウパネルの破損の危惧なくインストルメント
パネル上面へのエアバッグユニットの配設を可能として
、グローブボックスのレイアウトの自由度を拡大するこ
とができる自動車のエアバッグ装置を提供するものであ
る。Problem to be Solved by the Invention Since the airbag unit is stored and arranged in front of the instrument panel in front of the passenger seat, there is no space for setting up a glove box, or even if a glove box can be set up, it is limited to a small space. There is a problem that there is not enough storage space for small items. A countermeasure for this problem would be to place the airbag unit on the top of the instrument panel, but since the front window panel is tilted backwards above the instrument panel, the pressure when the airbag deploys is If the front window panel is damaged, the airbag reaction surface for restraining the occupants will not be available, making it difficult to realize the situation. To provide an airbag device for an automobile that can expand the degree of freedom in layout of a glove box by allowing an airbag unit to be disposed on the upper surface of an instrument panel.

課題を解決するための手段 インストルメントパネルの上面に、エアバッグ膨張時に
その膨張圧を受けて車室前方に向けて開蓋可能なエアバ
ッグカバーを有するエアバッグユニットを配設すると共
に、このエアバッグユニットにエアバッグカバーの開度
規制手段を付設しである。Means for Solving the Problems An airbag unit having an airbag cover that can be opened toward the front of the vehicle interior in response to the inflation pressure when the airbag is inflated is disposed on the top surface of the instrument panel, and The bag unit is equipped with an airbag cover opening regulating means.

作用 エアバッグの膨張圧によりエアバッグカバーが開蓋する
が、その開度が一定に規制されて、該エアバッグカバー
によりエアバッグの展開に指向性が付与され、該エアバ
ッグは車室後方に向けて展開する。The airbag cover opens due to the inflation pressure of the working airbag, but the degree of opening is regulated to a certain degree, and the airbag cover gives directionality to the deployment of the airbag, so that the airbag is directed toward the rear of the passenger compartment. Expand towards.

実施例 以下、本発明の一実施例を図面と共に詳述する。Example Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

第１〜４図において、ｌはインストルメントパネル、２
はフロントウィンドウパネル、３はルーフパネルを示し
、図外の助手席に対向するインストルメントパネル１の
上面にはエアバッグ取付孔４を形成してあって、このエ
アバッグ取付孔４にエアバッグユニット５を配設しであ
る。エアバッグユニット５は、トレー状のベースプレー
ト６と、ベースプレート６底部に装着したガス発生器７
゜該ベースプレート６にガス発生器７を囲繞して装着さ
れ、かつ、折り畳んで収納されたエアバッグ８ど、該エ
アバッグ８を被覆するエアバッグカバー９とからなって
いる。ベースプレート６、エアバッグカバー９は、それ
らの周縁フランジ６ａ。In Figures 1 to 4, l is the instrument panel, 2
3 indicates a front window panel, and 3 indicates a roof panel. An airbag mounting hole 4 is formed on the upper surface of the instrument panel 1 facing a passenger seat (not shown), and an airbag unit is installed in this airbag mounting hole 4. 5 is arranged. The airbag unit 5 includes a tray-shaped base plate 6 and a gas generator 7 attached to the bottom of the base plate 6.
The airbag 8 is attached to the base plate 6 so as to surround the gas generator 7, and includes an airbag 8 which is folded and stored, and an airbag cover 9 which covers the airbag 8. The base plate 6 and the airbag cover 9 have their peripheral flanges 6a.

９ａを重合してボルト・ナツト１８固定してあり、ベー
スプレート６をステアリングサポートメンバ１１にブラ
ケット１２を介して固定して、エアバ。9a are overlapped and fixed with bolts and nuts 18, and the base plate 6 is fixed to the steering support member 11 via a bracket 12 to form an air bar.

ラグカバー９上面がインストルメントパネルｌ上面と面
一に整合するように配設しである。エアバッグカバー９
はエアバッグ８の展開時の飛散を避けるため補強用の布
１３をインサートしたウレタン発泡成形体からなってい
る。このエアバッグカバー９の後側部および両側部には
、布１３のインサートがなく、かつ、薄肉に形成した５
破断部１４を連続して形成しであると共に、エアバッグ
カバー９の前側部には、前記両側部の５破断部１４に連
なって薄肉のヒンジ部１５を形成してあり、エアバッグ
８の展開時には、このエアバッグカバー９が、前記５破
断部１４から破断してヒンジ部１５を支点として車室前
方に開蓋し得るようになっている。そして、このエアバ
ッグユニット５に、前記エアノミラグカバー９の開度規
制手段１Ｇを付設しである。開度規制手段１６として、
本実施例では前記布１３に予め縫製した布製のストラッ
プを用いている。このストラップ１６はエアバッグカバ
ー９上壁の、前記両側部の５破断部１４，１４で画成さ
れた範囲で、後側部の５破断部１４の近傍に沿って車幅
方向にインサートしてあり、両端部は両側部の５破断部
１４．１４近傍よりエアバッグカバ−９裏面側に引き出
し、各端末をベースプレート６の周縁フランジ６ａにリ
テーナプレート１７を介してボルト・ナツト１８固定し
である。このストラップ１６両端部の長さは、エアバッ
グ８が展開した時に、該エアバッグ８がフロントウィン
ドウパネル２を直撃しない適宜の角度でエアバッグカバ
ー９を全開規制し得る長さとすることは勿論である。The upper surface of the lug cover 9 is arranged flush with the upper surface of the instrument panel l. Airbag cover 9
is made of a urethane foam molded body into which a reinforcing cloth 13 is inserted to avoid scattering when the airbag 8 is deployed. There is no insert of cloth 13 on the rear side and both sides of this airbag cover 9, and 5 is formed thinly.
The broken parts 14 are formed continuously, and a thin hinge part 15 is formed on the front side of the airbag cover 9 so as to be continuous with the five broken parts 14 on both sides. At times, the airbag cover 9 can be broken at the five breaking parts 14 and opened toward the front of the vehicle interior using the hinge part 15 as a fulcrum. This airbag unit 5 is also provided with an opening regulating means 1G for the air chisel lug cover 9. As the opening regulating means 16,
In this embodiment, a cloth strap sewn in advance to the cloth 13 is used. This strap 16 is inserted in the vehicle width direction along the vicinity of the five broken parts 14 on the rear side in the area defined by the five broken parts 14 on both sides of the upper wall of the airbag cover 9. Both ends are pulled out to the back side of the airbag cover 9 from near the 5 broken parts 14 and 14 on both sides, and each end is fixed to the peripheral flange 6a of the base plate 6 via the retainer plate 17 with bolts and nuts 18. . It goes without saying that the length of both ends of the strap 16 should be such that when the airbag 8 is deployed, the airbag cover 9 can be fully opened at an appropriate angle to prevent the airbag 8 from directly hitting the front window panel 2. be.

以上の実施例構造によれば、車両衝突時に図外の減速度
センサの信号にもとづいてガス発生器７が発火６作動し
、発生ガスによりエアバッグｓｈ＜膨張すると、エアバ
ッグカバー９はこの膨張圧を受けて５破断部１４より破
断し、ヒンジ部Ｉ５を支点として車室前方に開蓋する。According to the structure of the above embodiment, when a vehicle crashes, the gas generator 7 is activated based on a signal from a deceleration sensor (not shown), and when the airbag sh<sh is expanded by the generated gas, the airbag cover 9 is Upon receiving the pressure, the lid breaks at the 5-breaking portion 14 and opens toward the front of the vehicle compartment using the hinge portion I5 as a fulcrum.

このエアバッグカバー９の開直によりエアバッグ８は車
室内に大きく展開するが、前記エアバッグカバー９の全
開位置がストラップ１６によって規制されているため、
エアバッグカバー９はフロントウィンドウパネル２を直
撃することなく車室後方向に向けて展開すると同時に、
インストルメントパネルｌ上面。When the airbag cover 9 is opened, the airbag 8 is expanded into the vehicle interior, but since the fully open position of the airbag cover 9 is restricted by the strap 16,
At the same time, the airbag cover 9 deploys toward the rear of the vehicle interior without directly hitting the front window panel 2.
Top of instrument panel.

フロントウィンドウパネル２およびルーフパネル３等を
反力面として、慣性移動する乗員Ｈを柔軟に受は止めて
拘束する。The front window panel 2, roof panel 3, etc. serve as reaction surfaces to flexibly catch and restrain the occupant H who is moving inertially.

発明の効果 以上のように本発明によれば、エアバッグユニットをイ
ンストルメントパネルの上面に配設してあって、しかも
、このエアバッグユニットはエアバッグ膨張時のエアバ
ッグカバーの開直角度を開度規制手段によって規制し、
エアバッグに車室後方への展開指向性を付与してフロン
トウィンドウパネルへの直撃を回避できるため、エアバ
ッグ反力面を確保してエアバッグ本来の機能を発揮させ
ることができる。そして、このようにエアバッグユニッ
トをスペース的に制約を受けることのないインストルメ
ントパネル上面に配設しであるため、そのレイアウトの
自由度を拡大できることは勿論、インストルメントパネ
ルのグローブボックスの設定についても同等制約を与え
ることもないという実用上多大な効果を有する。Effects of the Invention As described above, according to the present invention, the airbag unit is disposed on the upper surface of the instrument panel, and furthermore, this airbag unit adjusts the opening angle of the airbag cover when the airbag is inflated. Regulated by opening regulating means,
By giving the airbag deployment direction toward the rear of the vehicle, it is possible to avoid a direct hit to the front window panel, ensuring a reaction force surface for the airbag and allowing the airbag to perform its original function. In addition, since the airbag unit is placed on the top of the instrument panel, which is not subject to any space constraints, it is possible to expand the flexibility of its layout, as well as improve the settings of the glove box on the instrument panel. This has a great practical effect in that it does not impose any equivalence constraints.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す略示的断面図、第２図
は同要部の拡大断面図、第３図はエアバッグユニットの
一部を破断した透視斜視図、第４図はｒＩ／？度規制手
段の固定部分を示す断面図である。 ｌ・・・インストルメントパネル、５・・・エアバッグ
ユニット、８・・・エアバッグ、９・・・エアバッグカ
バー、１６・・・開度規制手段（ストラップ）。 外２名 ９・・・エアバッグカバー 第３図 第４図FIG. 1 is a schematic cross-sectional view showing one embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the essential parts, FIG. 3 is a partially cutaway perspective view of an airbag unit, and FIG. 4 is rI/? FIG. 3 is a cross-sectional view showing a fixed portion of the degree regulating means. l... Instrument panel, 5... Airbag unit, 8... Airbag, 9... Airbag cover, 16... Opening degree regulating means (strap). 2 people outside 9... Airbag cover Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] （１）インストルメントパネルの上面に、エアバッグ膨
張時にその膨張圧を受けて車室前方に向けて開蓋可能な
エアバッグカバーを有するエアバッグユニットを配設す
ると共に、このエアバッグユニットにエアバッグカバー
の開度規制手段を付設したことを特徴とする自動車のエ
アバッグ装置。(1) An airbag unit having an airbag cover that can be opened toward the front of the vehicle interior by receiving the inflation pressure when the airbag is inflated is disposed on the top surface of the instrument panel, and the airbag unit is An airbag device for an automobile, characterized in that it is equipped with means for regulating the opening degree of a bag cover.
JP63028533A 1988-02-09 1988-02-09 Automotive airbag device Expired - Lifetime JP2509277B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP63028533A JP2509277B2 (en) 1988-02-09 1988-02-09 Automotive airbag device
US07/304,097 US4911471A (en) 1988-02-09 1989-01-31 Arrangement of air-bag device in motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63028533A JP2509277B2 (en) 1988-02-09 1988-02-09 Automotive airbag device

Publications (2)

Publication Number Publication Date
JPH01204838A true JPH01204838A (en) 1989-08-17
JP2509277B2 JP2509277B2 (en) 1996-06-19

Family

ID=12251308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63028533A Expired - Lifetime JP2509277B2 (en) 1988-02-09 1988-02-09 Automotive airbag device

Country Status (2)

Country Link
US (1) US4911471A (en)
JP (1) JP2509277B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364714A2 (en) * 1988-10-19 1990-04-25 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Crash safety device for a motor vehicle occupant
US5265903A (en) * 1991-11-22 1993-11-30 Takata Corporation Device for protecting a head of an occupant
KR20020096710A (en) * 2001-06-21 2002-12-31 기아자동차주식회사 Air bag system for automobile
JP2006256381A (en) * 2005-03-15 2006-09-28 Inoac Corp Airbag door

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JPH02310141A (en) * 1989-05-24 1990-12-25 Mazda Motor Corp Air bag device for automobile
US5072967A (en) * 1990-07-12 1991-12-17 Davidson Textron Inc. Instrument panel with invisible airbag deployment door
JP2548373Y2 (en) * 1990-08-02 1997-09-17 オートリブ デベロップメント アクテボラゲット Airbag device
US5108128A (en) * 1990-09-04 1992-04-28 Davidson Textron, Inc. Self-piercing cover assembly for airbag
US5131678A (en) * 1990-12-03 1992-07-21 Davidson Textron Inc. Invisible air bag cover door
US5121941A (en) * 1991-02-19 1992-06-16 Trw Vehicle Safety Systems Inc. Air bag module
US5160164A (en) * 1991-06-05 1992-11-03 Trw Vehicle Safety Systems Inc. Gas deflection device for an air bag assembly
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US5306043A (en) * 1991-10-24 1994-04-26 Trw Vehicle Safety Systems Inc. Dashboard top mounted vehicle air bag assembly
US5398959A (en) * 1992-02-19 1995-03-21 General Motors Corporation Panel cover door attachment for inflatable occupant restraint
US5456490A (en) * 1992-08-13 1995-10-10 Davidson Textron Inc. Hidden door for an air bag restraint system
DE4229379C2 (en) * 1992-09-03 1996-03-28 Daimler Benz Ag Cover for the gas cushion of an impact protection device for vehicle occupants
US5364124A (en) * 1992-10-29 1994-11-15 General Motors Corporation Air bag assembly with deployment chute
US5308111A (en) * 1993-01-29 1994-05-03 General Motors Corporation Inflatable restraint having an improved tether
DE4306149A1 (en) * 1993-02-27 1994-09-01 Opel Adam Ag Cover for the aperture of a chamber accommodating an air bag
GB2276354B (en) * 1993-03-22 1996-01-03 Klippan Autoliv Snc Improvements in or relating to a cover for an air-bag
US5460403A (en) * 1993-08-03 1995-10-24 Morton International, Inc. Inflatable air bag module
US5385366A (en) * 1993-09-07 1995-01-31 General Motors Corporation Air bag deflection shield
US5348343A (en) * 1993-11-01 1994-09-20 General Motors Corporation Air bag deployment bias apparatus
JP3136897B2 (en) * 1994-04-26 2001-02-19 豊田合成株式会社 Airbag device for passenger seat
US5431433A (en) * 1994-05-02 1995-07-11 Morton International, Inc. Fastenerless tethered deployment door for passenger-side airbag module
US5447328A (en) * 1994-05-31 1995-09-05 Davidson Textron Trim panel having integral door cover
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US4911471A (en) 1990-03-27

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